@article{HoffmannWarschburger2018, author = {Hoffmann, Svenja and Warschburger, Petra}, title = {Patterns of body image concerns in adolescence and early adulthood}, series = {Eating Behaviors}, volume = {29}, journal = {Eating Behaviors}, publisher = {Elsevier}, address = {Amsterdam}, issn = {1471-0153}, doi = {10.1016/j.eatbeh.2018.02.002}, pages = {28 -- 34}, year = {2018}, abstract = {The present study aimed at identifying latent profiles of body image concerns in adolescents and young adults. Subsequently, associations between these profiles and potentially harmful behaviors are examined. Self-report data of 758 male and female adolescents, aged 14 to 22 years, were analyzed. Participants provided demographic and anthropometric data and completed surveys on weight/shape and muscularity concern as well as on disturbed eating behaviors and dysfunctional exercise. Latent profile analyses of weight/shape concern and muscularity concern were performed separately for each gender. The analyses indicated three-class solutions in men and women. In both genders, the inconspicuous class, characterized by small amounts of weight/shape and muscularity concerns, was the largest one (86\% in men, 68\% in women). Whereas 10\% of the men and 23\% of the women were assigned to the borderline class, 4\% of the men and 8\% of the women formed the conspicuous class (marked weight/shape and muscularity concerns). Between genders, the degrees of muscularity concern differed in the borderline and inconspicuous classes, while the degrees of weight/shape concern differed in the inconspicuous class only. The comparable degrees of weight/shape and muscularity concerns in men and women in the affected classes underline the relevance of both aspects in both genders. Classes could be distinguished by harmful behaviors, like restrained eating or emotional exercise, proving the clinical significance of body image concerns.}, language = {en} } @article{LazaridesDietrichTaskinen2018, author = {Lazarides, Rebecca and Dietrich, Julia and Taskinen, Paeivi H.}, title = {Stability and change in students' motivational profiles in mathematics classrooms}, series = {Teaching and teacher education : an international journal of research and studies}, volume = {79}, journal = {Teaching and teacher education : an international journal of research and studies}, publisher = {Elsevier}, address = {Oxford}, issn = {0742-051X}, doi = {10.1016/j.tate.2018.12.016}, pages = {164 -- 175}, year = {2018}, abstract = {Person-centered research has shown that individuals can be assigned to different motivational profiles, but only scattered studies have addressed motivational profiles in specific domains. We investigated the stability and change in motivational profiles in mathematics classrooms and examined how perceived teaching predicted changes in profile membership. Data for this study stemmed from the PISA-I Plus study (N=6020). Latent profile analysis identified four motivational patterns: Medium, Low, High and Highly confident, hardly interested. Stability in profiles from grade 9 to 10 was typical. Instructional clarity and teaching for meaning predicted changes in profile membership.}, language = {en} }